Yazoo kees zero turn

I have a Yazoo Kees zero turn....best mower I have ever had.  Model number is ZVKH61271 purchased in 2005.  One of the "cutter housings" part number 104403 in the parts manual is ruined and needs replacing.  The other three spindles need rebuilding.  Assuming this part is not available, does anyone know what spindle assembly with pulley will replace this part and where I can get three of them?  This is a 61" deck. 
 
Carper 

830-591-7556